/Engine/Source/Runtime/InputCore/Public/GenericPlatform/GenericPlatformInput.h
Retrieves some standard key code mappings (usually called by a subclass's GetCharKeyMap)
static uint32 GetStandardPrintableKeyMap ( uint32 * KeyCodes, [FString](API\Runtime\Core\Containers\FString) * KeyNames, uint32 MaxMappings, bool bMapUppercaseKeys, bool bMapLowercaseKeys )